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指示提单经过背书可转让，又具有一定保护性，故在国际贸易中广为使用。( )
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Outside-the-classroom Learning Makes a Big Difference Putting a bunch of college students in charge of a $300,000 Dance Marathon, fundraiser surely sounds a bit risky. When you consider the fact that the money is supposed to be given to. Children in need of medical care, you might call the idea crazy. Most student leaders don’t want to spend a large amount of time on something they care little about, said 22-year-old University of Florida student Darren Heitner. He was the Dance Marathon’s operations officer for two years. Yvonne Fangmeyer, director of the student organization office at the University of Wisconsin, conducted a survey in February of students involved in campus organizations. She said the desire for friendship was the most frequently cited reason for joining. At large universities like Fangmeyer’s, which has more than 40,000 students, the students, first of all, want to find a way to "belong in their own comer of campus". Katie Rowley, a Wisconsin senior, confirms the survey’s findings. "I wanted to make the campus feel smaller by joining an organization where I could not only get involved on campus but also find a group of friends." All of this talk of friendship, however, does not mean that students aren’t thinking about their resumes. "I think that a lot of people do join to ’fatten up their resmne’," said Heitner. "At the beginning of my college career, I joined a few of these organizations, hoping to get a start in my leadership roles." But without passion student leaders can have a difficult time trying to weather the storms that come. For example, in April, several student organizations at Wisconsin teamed up for an event designed to educate students about homelessness and poverty. Student leaders had to face the problem of solving disagreements, moving the event because of rainy weather, and dealing with the university’s complicated bureaucracy. "Outside-of the classroom learning really makes a big difference," Fangmeyer said. American students join campus organizations mostly for______.
五脏中最常见哪两脏的血虚证( )
2009年7月，全国粗钢产量同比增长12.6%。增速比上月提高6.6个百分点；钢材产量同比增长19.4%，增速比上月提高5.4个百分比；焦炭产量同比增长6.3%；铁合金产量同比增长15.1%。钢材出口181万吨，比上月增加38万吨；进口174万吨，比上月增加11万吨。钢坯进口57万吨，比上月增加19万吨。焦炭出口5万吨，比上月增加2万吨。 1～7月，全国粗钢产量31731万吨，同比增长2.9%，增速同比下降6.4个百分点。钢材产量37784万吨，同比增长7.6%，增速同比下降4，1个百分点。焦炭产量19048万吨．同比下降3.5%，上年同期的同比增长为11.3%。铁合金产量1124万吨，同比增长0.8%，增速同比下降16.8个百分点。钢坯进口323万吨，同比增加27.9倍。钢材出口1116万吨，同比下降67.3%；进口988万吨，同比增长1.6%。铁矿砂进口35525万吨，同比增长31.8%。焦炭出口28万吨，同比下降96.6%。 2007年1～7月，全国粗钢产量约为多少亿吨( )
阅读下文，回答下列问题。 织袜机是英国牧师李·维利亚1593年发明的。关于这项发明还有段有趣的插曲。当年这位发明家为了向织袜女工梅丽求婚，苦思冥想，别出心裁地发明了能帮助梅丽摆脱繁重劳动的织袜机，并以此作为奉献给心上人的结婚礼物。 [ ]，男装最容易脏的部位是袖口和领子。没有一位妻子希望自己的丈夫是个邋遢鬼，她们总希望自己的丈夫穿着体面地走在大街上，但天天洗衣服谈何容易1825年，美国特洛伊城的汉娜·蒙塔基的发明解决了这个难题，她设计的上衣带有可脱卸的领子，这不仅使丈夫每天都能穿着整洁，同时也大大减轻了自己以及像她那样的妇女家务劳动的强度。 带活轮的自行车在上一世纪末才问世。1887年，法国人皮埃尔·卡尔梅设计出了带活动轴辊的车轴。这项发明的动机是爱父之情。皮埃尔的父亲天天骑车去工作，毫不停歇地蹬车使他筋疲力尽，儿子的礼物帮了父亲的大忙。 1640年，著名的法国科学家布莱泽·帕斯卡的父亲被派往鲁昂任行政长官。17岁的小帕斯卡协助父亲计算税款。没完没了的繁杂运算弄得他疲惫不堪。小帕斯卡下决心要发明一台机器来帮助父亲完成这种费力的工作。两年后，这种机器果真诞生了。小帕斯卡的机器只能做加法，能做乘法的计算机是铸钟匠的儿子利昂·博勒研制成功的。有意思的是，他不仅是小帕斯卡的同胞和同龄人，而且两人有相同的发明动机。 谁的发明表达了夫妻之间的关心和恩爱( )
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